[Freeswitch-users] Number of codecs offerred in SDP

[Brian West]

Check to see if you have mod_spandsp or mod_voipcodecs loaded.

/b

On Jun 23, 2010, at 7:43 AM, Mark Campbell-Smith wrote:

> Check this good wiki page for how FS negotiates codecs (early
> negotiation default):
> http://wiki.freeswitch.org/wiki/Codec_Negotiation
> 
> I have this set in my internal profile:
>    <param name="codec-prefs" value="$${global_codec_prefs}"/>
> 
> and as stated before vars.xml:
> <X-PRE-PROCESS cmd="set" data="global_codec_prefs=G729,PCMU,GSM"/>
> <X-PRE-PROCESS cmd="set" data="outbound_codec_prefs=G729,PCMU,GSM"/>
> 
> Setting late negotiation works (thanks Sergey), but reading the wiki
> page, I see the following sentence, which I interpret that GSM should
> still be sent:
> When FS calls leg B, the list of codecs in outbound-codec-prefs for
> the SIP profile is reorganized by pushing the codec negotiated above
> for leg A at the top . If B does not accept any of the codecs, the
> calls fails, obviously.
>